For Ruedi Baur, his work as a designer has been closely related to public space since the 1980s. After initially working as a graphic designer for various cultural institutions, in the 1990s he established a cross-curricular programme at the École nationale des beaux-arts in Lyon, which deals with concepts of information in space, as well as a postgraduate programme with the Title "Public Spaces and Design" ("Espaces civiques et design"). Since then he has been working on this topic, both in his work in various studios and as part of his teaching assignments.

He engages – side by side with architects and urban planners -  in problems of identification, orientation and scenography, which in a larger context influences the representation of institutions, urban spaces and political institutions.                                                                                    

With the demand for an interdisciplinary design, he founded in 1989 the Intégral Concept network and his own studios, Intégral Ruedi Baur in Paris and Zurich, and continued to pursue his teaching at various institutions, such as the Leipzig Academy of Visual Arts, where he worked as a professor of "system design" before being appointed as rector. Today, he teaches and researches at the Geneva College of Arts (HEAD), at the École des arts décoratifs in Paris (ENSAD) and at the University of Strasbourg, where he also runs a University of Applied Sciences research project funded by the University Excellence Initiative (IdEx) under the keywords "complex identities, readable and understandable". There he also wrote his doctoral thesis on "Between identity and identification - bourgeois values ​​in territorial systems of representation". He also received an honorary doctorate from the University of Laval, Quebec. Furthermore, he teaches and researches in China, Argentina and Brazil.

The results of his research can be traced in his publications, in particular in "Signs for Peace, an Impossible visual Encyclopedia" (Lars Müller, 2011), together with Vera Baur, and "Face au brand territorial" (Lars Müller, 2013) with Sébastien Thiery.

Today, Ruedi Baur is in charge of several studios: Intégral Ruedi Baur Paris, the Laboratoire Irb, an Applied Research Institute, the design research institute Civic City, and the Jeune Entreprise Universitaire (JEU) Dix Milliards Humains, an institute for development research.

Among the numerous projects on control systems, company designs and scenography for which Baur is responsible, highlights of his most recent works are the design of the Manifesta 11 and the signage of the New School in New York, the Cologne-Bonn Airport or the airport Vienna, as well as "La Phrase" ("The Phrase"), an urban design project in Mons, 2015 European Capital of Culture, as well as the scenography of the French pavilion at the Frankfurt Book Fair 2017. Together with the team of Intégral Paris, he has recently designed the passenger information system for the future metro lines of the Grand Paris Express (2022-2030).

Since 1992 Ruedi Baur has been a member of the AGI (Alliance Graphique Internationale).